去分母解一元一次方程专项练习(有答案)
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6.
解一元一次方程专项练习题
8.
血+1 _三二烫一 2 _
力+3
~2~
~~10- ~
2. X- l_2x- 1 -=
-2;
区+4
0?2
0*5
3. 0. 2;■: _ 0.1 - x _ 1
---------------- —2 --------
0.3
0.4
2 (x+1)
5 (时1)
=4.
1? 7 - 2x x 0. 3 = 0. 7
11.二-6x=- \+1;
3 2
12. y —
:(y — 1}…y — 1);
5.
8]=丄
x+1;
2
14.
6.
15. x-7
~4~
=1.
16. x-3
17.
18. 空乜—仁
V
2>:-_1 - 10^+1 亍 12
2x- 1 3x- 1 6
8
.
0. H - 0. 2 0. 5"J
0.02
■i{x -
4 (x 2
3
4
2x- 1 _ 5-
x K +3 3
6
"2
22.
23. 24.
25. 19. 3x - 1
20. 21
.
5x-7
4
賢碍誓-号
26.
27.
28.
3^1(.-!)-814
x+5 x ~ 1
---- =x -
6 3
29. 0.1 - 0. 2x - 1=0. 7 - x
0, 03~ ~~^T
36.
30.37.
31.=2 - - (x+2).
5 38.
6 (2-^) —* (10+15y) =2
3 5
32.
-0.18x+0.18 1.5 - 3x
0. 03 +"
0. 02x
0.12
39.
33.40.
G-i) (K+1) (X+6) (i+l) (K - 1)
=JL 34.
412x+l _5x-l
3 6
35.
42.
X - 2 2x - 5 -
-3
4 3 "
2己"(
;(x-
1 )-:(
4 5
4 r l
—a -1)-
3 4
x-3 4x+l
2 5 "
i+4 _ x
-3
-.
x - 7 5x+8
43.
44.
45.
46.
47. 八;
3x+2)=亠-殳(x- 1).
10 2
-D ]=| a-i).
49.
50.
51.
52.
53.
54.
55.
';
2 3
75% (x- 1)- 25%( x - 4) =25% (x+6)
(3x-6)-吕(2x-4)=4
J 乙
2x+l _ 3x-2
~L2~~~T
-jt-f (亍1)- 2] - K=2
48.
3
49.
3